Commit 28866d6e authored by Geetha sowjanya's avatar Geetha sowjanya Committed by David S. Miller
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octeontx2-af: Fix SDP MAC link credits configuration 



Current driver allows only packet size < 512B as SDP_LINK_CREDIT
register is set to default value.
This patch fixes this issue by configure the register with
maximum HW supported value to allow packet size > 512B.

Fixes: 2f7f33a0 ("octeontx2-pf: Add representors for sdp MAC")
Signed-off-by: default avatarGeetha sowjanya <gakula@marvell.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a747e024

drivers/net/ethernet/marvell/octeontx2/af/common.h

+1 −0
Original line number Diff line number Diff line
@@ -159,6 +159,7 @@ enum nix_scheduler { 
#define	SDP_HW_MIN_FRS			16

#define CN10K_LMAC_LINK_MAX_FRS		16380 /* 16k - FCS */

#define CN10K_LBK_LINK_MAX_FRS		65535 /* 64k */

#define SDP_LINK_CREDIT			0x320202



/* NIX RX action operation*/

#define NIX_RX_ACTIONOP_DROP		(0x0ull)

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

+3 −0
Original line number Diff line number Diff line
@@ -4672,6 +4672,9 @@ static void nix_link_config(struct rvu *rvu, int blkaddr, 
	rvu_get_lbk_link_max_frs(rvu, &lbk_max_frs);

	rvu_get_lmac_link_max_frs(rvu, &lmac_max_frs);



	/* Set SDP link credit */

	rvu_write64(rvu, blkaddr, NIX_AF_SDP_LINK_CREDIT, SDP_LINK_CREDIT);



	/* Set default min/max packet lengths allowed on NIX Rx links.

	 *

	 * With HW reset minlen value of 60byte, HW will treat ARP pkts